EP 1712814 B1 20131106 - ECCENTRIC OSCILLATING-TYPE PLANETARY GEAR DEVICE
Title (en)
ECCENTRIC OSCILLATING-TYPE PLANETARY GEAR DEVICE
Title (de)
EXZENTRISCH OSZILLIERENDE PLANETENGETRIEBEVORRICHTUNG
Title (fr)
DISPOSITIF D'ENGRENAGE PLANETAIRE DE TYPE OSCILLANT EXCENTRIQUE
Publication
Application
Priority
- JP 2005001188 W 20050128
- JP 2004024887 A 20040130
- JP 2004142505 A 20040512
- JP 2004147352 A 20040518
- JP 2004217946 A 20040726
Abstract (en)
[origin: EP1712814A2] Elastic deformation of bridge portions in an externally toothed gear and external teeth is suppressed, and this extends the life of tooth surfaces of external teeth 19, improves vibration characteristics, and markedly increases output torque while preventing a planetary gear device 11 from becoming large in size. To achieve the above, a ratio obtained by dividing the diameter D of each of pins constituting internal teeth 14 by the pitch P of the internal teeth 14 is made smaller to an extent where tooth tops 19a of the external teeth 19 are radially outside the inner periphery 15a of an internally toothed gear 15. Alternatively, a meeting point C where action lines S of reaction force K of drive force components meet is moved more radially outward compared with a known eccentric oscillating-type planetary gear device so as to be positioned between a pin circle P passing the centers of all the internal teeth (pins) 14 and an outer end passing circle G passing radially outer ends of through holes 22. In addition, the amount H of eccentricity of an externally toothed gear 18 relative to an internally toothed gear is set not less than 0.5 times the radius R of the internal teeth (pins) 14.
IPC 8 full level
F16H 1/32 (2006.01)
CPC (source: EP KR US)
F16H 1/32 (2013.01 - EP KR US)
Designated contracting state (EPC)
DE SE SK
DOCDB simple family (publication)
EP 1712814 A2 20061018; EP 1712814 A4 20100526; EP 1712814 B1 20131106; EP 2461071 A1 20120606; EP 2461071 B1 20130626; EP 2463548 A1 20120613; EP 2463548 B1 20130821; EP 2463549 A1 20120613; EP 2463549 B1 20130710; KR 101140794 B1 20120503; KR 20070006729 A 20070111; TW 200537040 A 20051116; TW I345616 B 20110721; US 2008139357 A1 20080612; US 7476174 B2 20090113; WO 2005072067 A2 20050811; WO 2005072067 A3 20051006
DOCDB simple family (application)
EP 05704240 A 20050128; EP 12000498 A 20050128; EP 12000499 A 20050128; EP 12000500 A 20050128; JP 2005001188 W 20050128; KR 20067015361 A 20050128; TW 94102766 A 20050128; US 59753405 A 20050128